21248822

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 16767178

約数列:

[1, 2, 7, 14, 29, 58, 199, 203, 263, 398, 406, 526, 1393, 1841, 2786, 3682, 5771, 7627, 11542, 15254, 40397, 52337, 53389, 80794, 104674, 106778, 366359, 732718, 1517773, 3035546, 10624411, 21248822]

約数ペア:

[(1, 21248822), (2, 10624411), (7, 3035546), (14, 1517773), (29, 732718), (58, 366359), (199, 106778), (203, 104674), (263, 80794), (398, 53389), (406, 52337), (526, 40397), (1393, 15254), (1841, 11542), (2786, 7627), (3682, 5771)]